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From "Jurriaan Mous (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12668) Adapt PayloadCarryingRpcController so it can also be used in async way
Date Sat, 13 Dec 2014 20:54:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14245532#comment-14245532
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Jurriaan Mous commented on HBASE-12668:
---------------------------------------

I see you updated the master (2.0.0) but that will do for now since client api is the same.
:)

I can now in a quick test confirm that I can replace the RPC client with a Netty based one
and start and stop a mini-cluster with it and it does all the normal sync communications correctly
and it is able to do async communication through custom API calls. Later in the coming week
I will try out some of the tests in HBase to see if the client works correctly with all current
RpcClient tests and will then probably propose a new issue to integrate the AsyncRpcClient
as an optional RpcClient in HBase itself.

> Adapt PayloadCarryingRpcController so it can also be used in async way
> ----------------------------------------------------------------------
>
>                 Key: HBASE-12668
>                 URL: https://issues.apache.org/jira/browse/HBASE-12668
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>            Reporter: Jurriaan Mous
>            Assignee: Jurriaan Mous
>             Fix For: 1.0.0, 2.0.0
>
>         Attachments: HBASE-12668-V1.patch, HBASE-12668-V1.patch, HBASE-12668.patch
>
>
> With the changes in HBASE-12597 it is possible to create a new RPC client. But in all
places the BlockingRpcChannel is called with a PayloadCarryingRpcController. This controller
is not usable in Async context because some methods are not supported at the moment. (See
TimeLimitedRpcController for the methods that throw UnsupportedOperationException)
> This issue is about implementing these methods so PayloadCarryingRpcController can also
be used in an async context and work the same in a sync context.



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